To anyone wondering about the rear upper arms and guide rods, I honestly didn't feel any difference after replacing them on my car. Who knows what the difference would be with the rogue rear arms and no M rear bits tho. Needless too say, I won't be taking mine off haha

The guide rods should reduce wheel hop during straight acceleration.
You're probably right about the upper links-they don't do much.
Ever pass a car quickly on a 2 lane road? My car torque steers when I do that, even w/the m3 subframe bushings. These toe links should eliminate/reduce that..